field.h

/* 
Beam Delivery Simulation (BDSIM) Copyright (C) Royal Holloway, 
University of London 2001 - 2022.
 
This file is part of BDSIM.
 
BDSIM is free software: you can redistribute it and/or modify 
it under the terms of the GNU General Public License as published 
by the Free Software Foundation version 3 of the License.
 
BDSIM is distributed in the hope that it will be useful, but 
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with BDSIM.  If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef FIELD_H
#define FIELD_H
 
#include <iomanip>
#include <iostream>
#include <string>
 
#include "published.h"
 
namespace GMAD
{
  class Field : public Published<Field>
  {
  public:
    std::string name;                 
    std::string type;                 
    double      eScaling;             
    double      bScaling;             
    std::string integrator;           
    bool        globalTransform;      
    std::string magneticFile;         
    std::string magneticInterpolator; 
    std::string electricFile;         
    std::string electricInterpolator; 
 
    double x; 
    double y; 
    double z; 
    double t; 
    double phi;
    double theta;
    double psi;
    double axisX;
    double axisY;
    double axisZ;
    double angle;
    bool   axisAngle; 
 
    bool   autoScale; 
 
    double maximumStepLength;
 
    std::string magneticSubField;
    std::string electricSubField;
 
    std::string magneticReflection;
    std::string electricReflection;
    
    std::string fieldParameters;
    
    Field();
    void clear();
    void print()const;
    template <typename T>
    void set_value(std::string property, T value);
 
    
  private:
    void PublishMembers();
  };
  
  template <typename T>
    void Field::set_value(std::string property, T value)
    {
#ifdef BDSDEBUG
      std::cout << "field> Setting value " << std::setw(25) << std::left << property << value << std::endl;
#endif
      // member method can throw runtime_error, catch and exit gracefully
      try {
        set(this,property,value);
      }
      catch(const std::runtime_error&) {
        std::cerr << "Error: field> unknown option \"" << property << "\" with value " << value  << std::endl;
        exit(1);
      }
    }
}
 
#endif